wtw Turb 430 IR/T, Operating Manual

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Operation Turb 430 IR/T
36 ba75507e04 06/2009
4.5.4 Settings for turbidity measurements
Overview For turbidity measurements, the following settings are possible in the
menu,
Configuration / Turbidity :

Calibration record (display, print)

Entering the Calibration interval

Reset
Settings/functions The settings are given in the menu, Configuration / Turbidity .
Move to the Configuration menu with the <MENU> key.
4.5.5 Calibration
When to calibrate?

After the calibration interval has expired

With a temperature change
Calibration procedures
and calibration
standards
For the menu-guided three-point calibration you need the following
three calibration standards in the mentioned order:
Menu item Possible
setting Description
Calibration record - Displays the calibration
record of the last
calibration.
Calibration interval 1 ... 999 d Calibration interval for
turbidity measurement (in
days).
If the calibration interval
has expired, the meter
reminds you to calibrate
before each measurement.
Reset Reset all settings for the
Turbidity measuring mode
(see section 4.8.2)
Standard no. FNU/NTU
1 1000
2 10,0
3 0,02